This is the second book in the series of subject-wise books by Kreatryx. This book is an attempt to provide quality concepts along with ample practice problems to students who wish to do well in competitive exams. We have made sure that the language used in this book is simple enough to understand because we know that the biggest issue faced by students is comprehending the typical language used in standard books. Our aim with this book is to eliminate the need to standard books for competitive exams as the time is limited in any exam and in that limited time student has to become proficient in different subjects. So we feel there was always a need for such a book which can provide in-depth concepts as well as provide problems for practice.

Some of the features of this book are topic-wise solved examples and topic wise practice problems as well as level wise exercises at the end of the chapter. We have also highlighted important points that one has to remember in every topic so that subject never feels too bulky. The best way to use this book would be to go through the theoretical aspects of any topic and then learn from solved examples as to how to attempt problems based on a particular topic. Then a student must go through the practice problems given under that topic and upon completion of the chapter he/she must solve the practice problems at end of the chapter. We have made sure that all topics and all types of problems are covered from basic to advanced level.

 This book covers all the topics asked in GATE and ESE which are Power Systems Generation, Transmission and Distribution, Economic Load Dispatch, Fault Analysis, Power Systems Stability, Power Systems Protection, and Load Flow Analysis. We have also made sure that we have explained all the pre-requisites before starting with the core of subject such as AC Analysis of Networks.

I am really proud of my team who have made this dream of mine a reality and made it possible for me to serve aspirants better. I would like to thank my student Sudheer Dhukia (GATE-2018 Air-24) who has worked hard to complete this book on time and Mr. Naveen Sardar who is a data entry operator at Kreatryx and has worked odd hours with me to realize this dream.

At last, I hope that this book fulfills your expectations and deepens your understanding of the subject. I hope you enjoy reading this book and learn a lot from it.

Ankit Goyal

Director, Kreatryx

(GATE-2014 AIR-1, GATE-2018 AIR-1)